The prize-winning pollution sensor developed by a Massachusetts company
detects all but the smallest particles, taking 1,200 readings each second.

The prize-winning pollution sensor developed by a Massachusetts...

Imagine a clip-on tech device that could actually tell you how much pollution you're huffing on your morning ride to work. Imagine you could watch the levels drop - 65, 50, 35 - the air getting better as you turn in to a leafy parking lot on a side street.

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